4 Position Wire to Board Terminal Block Horizontal with Board 0.138" (3.50mm) Through Hole
The TE Connectivity 284391-4 is a through-hole mounted PCB terminal block designed for wire-to-board power and signal connections in industrial and electronic control applications. The component belongs to the Buchanan series and features a side-entry wire interface with a horizontal mating orientation. The terminal block supports secure screw-clamp wire termination and is intended for reliable field wiring in low-voltage systems.
The connector provides four positions with a 3.5 mm pitch and supports wire sizes from 14 AWG to 30 AWG. The housing is manufactured from polyamide PA66 (Nylon 6/6) with a UL94 V-0 flammability rating. Conductive elements are constructed from brass with tin-plated contacts and nickel-plated clamp and screw components to ensure corrosion resistance and electrical reliability.
The device is rated for up to 12 A current and 300 V operation and is suitable for PCB-mounted applications requiring compact, stackable terminal connections. The terminal block includes side interlocking capability for modular multi-position expansion.
Engineering Specification
Component Type: PCB Terminal Block
Manufacturer: TE Connectivity AMP Connectors
Series: Buchanan
Manufacturer Part Number: 284391-4
Connector Configuration: Wire-to-Board
Mounting Type: Through Hole
Wire Entry Orientation: Horizontal / Side Entry
Number of Positions: 4
Number of Levels: Single Level
Pitch: 3.50 mm
Wire Termination Method: Screw Rising Cage Clamp
Supported Wire Gauge: 14 AWG to 30 AWG
Screw Thread Size: M3
Recommended Screw Torque: 0.25 Nm (2.2 lb-in)
Rated Current: 12 A
Rated Voltage: 300 V AC
Housing Material: Polyamide PA66 (Nylon 6/6)
Housing Color: Green
Flammability Rating: UL94 V-0
Contact Material: Brass
Contact Plating: Tin
Clamp Material: Brass with Nickel Plating
Screw Material: Brass with Nickel Plating
Feature Set: Side Interlocking Capability
Compliance: RoHS Compliant
Mounting Orientation: PCB Straight Mount
The component shall be used in applications requiring secure PCB-mounted terminal connections with moderate current handling capability and compact spacing. Typical applications include industrial control systems, embedded electronics, instrumentation, automation interfaces, and low-voltage power distribution assemblies.
